EP2562007A1 - Pneu à plis modulaires avec chevauchement de plis - Google Patents

Pneu à plis modulaires avec chevauchement de plis Download PDF

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Publication number
EP2562007A1
EP2562007A1 EP12191231A EP12191231A EP2562007A1 EP 2562007 A1 EP2562007 A1 EP 2562007A1 EP 12191231 A EP12191231 A EP 12191231A EP 12191231 A EP12191231 A EP 12191231A EP 2562007 A1 EP2562007 A1 EP 2562007A1
Authority
EP
European Patent Office
Prior art keywords
ply
carcass
tire
edge
center line
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP12191231A
Other languages
German (de)
English (en)
Other versions
EP2562007B1 (fr
Inventor
Robert Anthony Neubauer
Keith Carl Trares
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Goodyear Tire and Rubber Co
Original Assignee
Goodyear Tire and Rubber Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Goodyear Tire and Rubber Co filed Critical Goodyear Tire and Rubber Co
Publication of EP2562007A1 publication Critical patent/EP2562007A1/fr
Application granted granted Critical
Publication of EP2562007B1 publication Critical patent/EP2562007B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/02—Carcasses
    • B60C9/04—Carcasses the reinforcing cords of each carcass ply arranged in a substantially parallel relationship
    • B60C9/08—Carcasses the reinforcing cords of each carcass ply arranged in a substantially parallel relationship the cords extend transversely from bead to bead, i.e. radial ply
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/0009—Tyre beads, e.g. ply turn-up or overlap features of the carcass terminal portion
    • B60C15/0036—Tyre beads, e.g. ply turn-up or overlap features of the carcass terminal portion with high ply turn-up, i.e. folded around the bead core and terminating radially above the point of maximum section width
    • B60C15/0045—Tyre beads, e.g. ply turn-up or overlap features of the carcass terminal portion with high ply turn-up, i.e. folded around the bead core and terminating radially above the point of maximum section width with ply turn-up up to the belt edges, i.e. folded around the bead core and extending to the belt edges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/02—Carcasses
    • B60C9/0207—Carcasses comprising an interrupted ply, i.e. where the carcass ply does not continuously extend from bead to bead but is interrupted, e.g. at the belt area, into two or more portions of the same ply
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/02—Carcasses
    • B60C9/04—Carcasses the reinforcing cords of each carcass ply arranged in a substantially parallel relationship
    • B60C9/08—Carcasses the reinforcing cords of each carcass ply arranged in a substantially parallel relationship the cords extend transversely from bead to bead, i.e. radial ply
    • B60C9/09—Carcasses the reinforcing cords of each carcass ply arranged in a substantially parallel relationship the cords extend transversely from bead to bead, i.e. radial ply combined with other carcass plies having cords extending diagonally from bead to bead, i.e. combined radial ply and bias angle ply
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T152/00—Resilient tires and wheels
    • Y10T152/10—Tires, resilient
    • Y10T152/10495—Pneumatic tire or inner tube
    • Y10T152/10855—Characterized by the carcass, carcass material, or physical arrangement of the carcass materials

Definitions

  • This invention relates to a tire carcass and to a pneumatic tire with such a carcass, and more particularly to a modular ply tire with overlapping plies in the crown area.
  • US-A-6,913,052 discloses a tire construction and method of building a tire which includes the steps of cylindrically applying a pair of radial cord reinforced sidewall plies; fixing the axial spacing between the bead cores; applying a crown ply; turning up each sidewall ply to overlap lateral edges of the crown ply; and moving the carcass assembly axially inwardly while shaping the carcass assembly toroidially to form ply turnups axially inwardly of the bead cores.
  • US-A-6,883,570 discloses a tire comprising at least one reinforcement structure of carcass type anchored on each side of the tire in a bead, said reinforcement structure being discontinuous over at least a portion of the crown of the tire.
  • US-A-6,883,571 discloses a tire comprising at least one reinforcement structure of carcass type anchored on each side of the tire in a bead, the carcass-type reinforcement structure extending circumferentially from the bead towards said sidewall and being discontinuous over at least a portion of the crown of the tire.
  • the crown reinforcement comprises on the one hand at least one primary reinforcement structure covering substantially the entire width of the crown and on the other hand a series of circumferential reinforcements also covering substantially the entire width of the crown.
  • the invention relates to a tire carcass according to claim 1 and to a tire comprising such a carcass according to claim 11.
  • a tire carcass includes a first radial ply with a shoulder portion and a lateral edge portion, the lateral edge portion being wrapped around a bead core, a carcass crown portion, the carcass crown portion having a first edge and a second edge, and a second radial ply with a second shoulder portion and a second lateral edge, the second lateral edge portion being wrapped around a second bead core, the first radial ply extending beyond the first edge of the carcass crown portion and the second radial ply extending beyond the second edge of the carcass crown portion.
  • the first radial ply and second radial ply extend beyond the edges of the carcass crown portion such that the plies overlap each other.
  • the first radial ply extends to the second edge and the second radial ply extends to the first edge.
  • the carcass has a center line perpendicular to the bead core, wherein the first radial ply is at an angle of less than approximately 85o with respect to the center line, and the second radial ply is at an angle of less than approximately 85o with respect to the center line.
  • the first radial ply is at an angle of less than approximately -85o with respect to the center line, and the second radial ply is at an angle less than approximately -85o with respect to the center line.
  • a pneumatic tire includes a carcass, a first radial ply with a shoulder portion and a lateral edge portion, the lateral edge portion being wrapped around a bead core, sidewalls, a carcass crown portion, the carcass crown portion having a first edge and a second edge, and a second radial ply with a second shoulder portion and a second lateral edge portion, the second lateral edge portion being wrapped around a second bead core, the first radial ply extending beyond the first edge of the carcass crown portion and the second radial ply extending beyond the second edge of the carcass crown portion.
  • a tire carcass includes at least a first radial ply with a shoulder portion and a lateral edge portion, the lateral edge portion being wrapped around a bead core, a carcass crown portion, the carcass crown portion having a first edge and a second edge, and at least a second radial ply with a second shoulder portion and a second lateral edge, the second lateral edge portion being wrapped around a second bead core, the at least a first radial ply extending beyond the first edge of the carcass crown portion and the at least a second radial ply extending beyond the second edge of the carcass crown portion.
  • One advantage of this invention may be seen in that it allows two plies to be in the crown portion of the tire instead of only one ply for instance.
  • Such a two ply crown construction provides increased puncture resistance compared to a one ply construction.
  • the invention allows it to consolidate such three ply constructions by eliminating a centerply into a two ply construction. This approach results in a tire with lower weight via reduced material use and accordingly also lower costs.
  • Another advantage of this invention is that angling the plies at angles less than 85°, preferably less than 75° (or less than -85° or -75° respectively) provides a tunability of the tire so that the tire performance can be easily adjusted to match specific needs.
  • first ply and the second ply may be made with different materials, i.e. with different reinforcement materials, which again provides a tunability of the tire so that the tire performance can be easily adjusted to match specific needs.
  • Carcass means the tire structure apart from the belt structure, tread, undertread, and sidewall rubber over the plies, but including bead cores.
  • Carcass crown portion means the portion of the carcass over which the crown is placed.
  • “Crown” or “tire crown” means the tread, tread shoulders, and the immediately adjacent portions of the sidewalls.
  • Interior means, generally, the inside surface of the tire.
  • Exterior means, generally, the outside surface of the tire.
  • Ring and radially mean directions toward or away from the axis of rotation of the tire.
  • Siliconewall means that component which comprises a portion of the outside surface of a tire between the tread and the bead.
  • FIGURE 1 shows a tire carcass 10, having two beads 12, 12', a carcass crown portion 14 (wherein the carcass crown portion 14 has a first edge 16 and a second edge 16'), a first, preferably radial ply 18, a second, preferably radial ply 34, turn-up ends 22, apexes 24, shoulders 30 and bead regions 32, 32'.
  • the bead regions 32, 32' have a pair of axially spaced beads 12, 12' around which are wrapped turn-up ends 22.
  • the apexes 24 are sandwiched between the main body of the carcass 10 and the turn-up ends 22.
  • Radially outside of the tire carcass 10 is a tread 26.
  • the carcass 10 is shown with belts 28 on top overlaying the carcass crown portion 14.
  • the first radial ply 18, in this embodiment extends to the second edge 16' and the second radial ply 34 extends to the first edge 16, such that the first radial ply 18 and the second radial ply 34 overlap. It is to be understood that the invention does require the plies 18, 34 to extend to the edges 16, 16', but only that the plies 18, 34 overlap. This allows the elimination of a center ply material.
  • the different plies 18, 34 can be made of different material, which provides tunability for the tire.
  • the plies 18, 34 are at an angle of less than approximately 85°, with respect to a centerline running parallel to the cross-section, i.e. perpendicular to the equatorial plane EP of the tire.
  • This angling of the plies 18, 34 also allows for tunability of the tire.
  • the plies 18, 34 can be angled in the same direction, or can be angled in different directions.
  • the centerline is perpendicular to the bead core. It is to be understood that the angling of the plies 18, 34 is merely one embodiment of the invention, and is not intended to limit the invention in any manner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)
EP12191231.5A 2008-08-29 2009-08-24 Pneu à plis modulaires avec chevauchement de plis Not-in-force EP2562007B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/201,040 US20100051163A1 (en) 2008-08-29 2008-08-29 Modular ply tire with overlapping plies
EP09168499A EP2159076B1 (fr) 2008-08-29 2009-08-24 Pneu à plis modulaires avec chevauchement de plis

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP09168499A Division EP2159076B1 (fr) 2008-08-29 2009-08-24 Pneu à plis modulaires avec chevauchement de plis
EP09168499.3 Division 2009-08-24

Publications (2)

Publication Number Publication Date
EP2562007A1 true EP2562007A1 (fr) 2013-02-27
EP2562007B1 EP2562007B1 (fr) 2014-07-16

Family

ID=41394125

Family Applications (2)

Application Number Title Priority Date Filing Date
EP12191231.5A Not-in-force EP2562007B1 (fr) 2008-08-29 2009-08-24 Pneu à plis modulaires avec chevauchement de plis
EP09168499A Not-in-force EP2159076B1 (fr) 2008-08-29 2009-08-24 Pneu à plis modulaires avec chevauchement de plis

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP09168499A Not-in-force EP2159076B1 (fr) 2008-08-29 2009-08-24 Pneu à plis modulaires avec chevauchement de plis

Country Status (3)

Country Link
US (1) US20100051163A1 (fr)
EP (2) EP2562007B1 (fr)
BR (1) BRPI0902657A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013107473A1 (de) 2013-07-15 2015-01-15 Continental Reifen Deutschland Gmbh Fahrzeugluftreifen
EP3102435A1 (fr) * 2014-02-06 2016-12-14 Bridgestone Americas Tire Operations, LLC Construction de pneumatique à configuration de nappe carcasse discontinue
WO2017086958A1 (fr) * 2015-11-18 2017-05-26 Compagnie Generale Des Etablissements Michelin Pneumatique amélioré avec nappe carcasse segmentée
JP7194583B2 (ja) * 2018-12-21 2022-12-22 Ｔｏｙｏ Ｔｉｒｅ株式会社 空気入りタイヤ

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1301159A (fr) * 1960-10-01 1962-08-10 Continental Gummi Werke Ag Pneumatique pour véhicule
FR1406196A (fr) * 1963-09-24 1965-07-16 Continental Gummi Werke Ag Pneumatique de véhicule
NL6700931A (fr) * 1967-01-20 1968-07-22
US3581793A (en) * 1967-12-15 1971-06-01 Continental Gummi Werke Ag Pneumatic vehicle tire
DE2136169A1 (de) * 1971-07-20 1973-02-08 Continental Gummi Werke Ag Fahrzeugluftreifen
FR2376762A1 (fr) * 1977-01-11 1978-08-04 Dunlop Ltd Perfectionnements aux pneumatiques
DE3539083A1 (de) * 1985-11-04 1987-05-07 Continental Gummi Werke Ag Fahrzeugluftreifen
EP0484831A1 (fr) * 1990-11-03 1992-05-13 Continental Aktiengesellschaft Bandage pneumatique pour bicyclette
US6267166B1 (en) * 1999-05-19 2001-07-31 Dunlop Tire Corporation Radial tire with asymmetric construction
US6883570B2 (en) 2001-10-29 2005-04-26 Michelin Recherche Et Technique S.A. Tire with double half-carcasses and low-profile crown reinforcements
US6883571B2 (en) 2001-10-29 2005-04-26 Michelin Recherche Et Technique S.A. Tire with double half-carcasses and adapted crown zone
US6913052B2 (en) 2002-12-27 2005-07-05 The Goodyear Tire & Rubber Company Tire with composite ply structure and method of manufacture
EP2014451A1 (fr) * 2007-07-07 2009-01-14 Continental Aktiengesellschaft Procédé pour la fabrication d'un pneumatique radial

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL237681A (fr) * 1958-04-03
FR1522420A (fr) * 1967-03-14 1968-04-26 Uniroyal Englebert France Perfectionnement aux carcasses radiales pour enveloppes de pneumatiques
IT1217183B (it) * 1988-04-22 1990-03-14 Pirelli Pneumatico per motocicli
DE4021450A1 (de) * 1990-07-05 1992-01-09 Uniroyal Englebert Gmbh Fahrzeugluftreifen

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1301159A (fr) * 1960-10-01 1962-08-10 Continental Gummi Werke Ag Pneumatique pour véhicule
FR1406196A (fr) * 1963-09-24 1965-07-16 Continental Gummi Werke Ag Pneumatique de véhicule
NL6700931A (fr) * 1967-01-20 1968-07-22
US3581793A (en) * 1967-12-15 1971-06-01 Continental Gummi Werke Ag Pneumatic vehicle tire
DE2136169A1 (de) * 1971-07-20 1973-02-08 Continental Gummi Werke Ag Fahrzeugluftreifen
FR2376762A1 (fr) * 1977-01-11 1978-08-04 Dunlop Ltd Perfectionnements aux pneumatiques
DE3539083A1 (de) * 1985-11-04 1987-05-07 Continental Gummi Werke Ag Fahrzeugluftreifen
EP0484831A1 (fr) * 1990-11-03 1992-05-13 Continental Aktiengesellschaft Bandage pneumatique pour bicyclette
US6267166B1 (en) * 1999-05-19 2001-07-31 Dunlop Tire Corporation Radial tire with asymmetric construction
US6883570B2 (en) 2001-10-29 2005-04-26 Michelin Recherche Et Technique S.A. Tire with double half-carcasses and low-profile crown reinforcements
US6883571B2 (en) 2001-10-29 2005-04-26 Michelin Recherche Et Technique S.A. Tire with double half-carcasses and adapted crown zone
US6913052B2 (en) 2002-12-27 2005-07-05 The Goodyear Tire & Rubber Company Tire with composite ply structure and method of manufacture
EP2014451A1 (fr) * 2007-07-07 2009-01-14 Continental Aktiengesellschaft Procédé pour la fabrication d'un pneumatique radial

Also Published As

Publication number Publication date
EP2159076B1 (fr) 2012-12-12
EP2159076A1 (fr) 2010-03-03
BRPI0902657A2 (pt) 2010-05-25
EP2562007B1 (fr) 2014-07-16
US20100051163A1 (en) 2010-03-04

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